If your truly smart answer
QUESTION 1
"To avoid muscle cramps, don t eat immediately before exercising and be sure to stay hydrated."
True

False

QUESTION 2
"Applying direct external pressure immediately after the injury can help decrease bleeding, bruising, and swelling."
True

False

2.25 points

QUESTION 3
Lordosis is an excessive inward curve of the lumbar spine (just above the buttocks).
True

False

QUESTION 4

"Rice is an acronym for Rest, Ice, Cold, Elevation."

True

False

QUESTION 5
You should keep proper posture during exercise.
True

False

QUESTION 6

Ice increases swelling and bleeding by constricting the blood vessels.

True

False

QUESTION 7

Scoliosis is a medical problem where the spine is straight in line.

True

False

QUESTION 8
Gradual progression is the main key to avoiding extreme soreness.
True

False

QUESTION 9
Kyphosis is a rounding or hunching of the back and shoulders.
True

False

QUESTION 10
Proper posture means that your spine is in neutral position
True

False

QUESTION 11
Having poor posture and technique can lead to:
unnecessary strain on joints and ligaments
injury
your body further out of alignment
all of the above

QUESTION 12
Some stretching is appropriate at the end of a warm up after your body temperature has increased.
True

False

QUESTION 13

"When you are lifting, you should lift with your back only. "

True

False

QUESTION 14
"If you begin exercising without warming up, you can cause injury to the muscles, ligaments, or joints."
True

False

QUESTION 15
"If the cool down is neglected, muscles can tighten up quickly, causing soreness or stiffness."
True

False

QUESTION 16
"The warm up and cool down are the most important, yet probably the most neglected elements of a work out routine."
True

False

QUESTION 17
"When exercising, you shouldn't extend your knees beyond a 90 degree angle. "
True

False

QUESTION 18
Tucking your belly button and tightening those abdominal muscles throughout the day is actually one of the best exercises you can do to help strengthen and flatten your abs.
True

False

QUESTION 19
It is important to drink water before you become thirsty.
True

False

QUESTION 20
"Spinal Alignment means your ear, shoulder, hip, knee, and ankle should are in a straight line."
True

False

Answers with Explanations:

1. True

Explanation:

Muscle cramps happen especially during an "intense workout." The frequency of cramps is related to heat, thus it is important to stay hydrated all throughout the workout. Eating should be done at least 2 to 3 hours prior to workout because eating immediately before exercise leads to undigested food. Such kind of food causes cramps.

2. True

Explanation: Applying direct pressure immediately after the injury can help decrease bleeding. Blood loss results to blood that is collected under the skin. This turns into the color of blue or black, also known as "bruise." Decrease bleeding would then mean decrease bruising.

Applying pressure also decreases swelling because it restricts the blood flow and fluid from reaching into the injury.

3. False

Explanation: "Lordosis" refers to the body's natural lordotic curve. This is considered "normal." The excessive inward curve of the lumbar spine is called "hyperlordosis." This is commonly caused by poor posture, lack of exercise, obesity and spinal conditions.

4. False

Explanation: The mnemonic acronym "RICE" stands for Rest, Ice, Compression (not Cold) and Elevation. This term is commonly used in First Aid and was introduced by Gabe Mirkin in 1978.

5. True

Explanation: Keeping the proper posture during exercise prevents the body from encountering injuries. It also ensures that the body is executing the exercise by using the muscles properly.

6. False

Explanation: "Ice" is important in decreasing the swelling of the injury. It constricts the blood vessels which prevents the flow of blood and other fluids towards the site of injury.

7. False

Explanation: The spine is naturally straight if a person doesn't have a medical problem. However, scoliosis is a medical problem. It is a condition wherein a person's spine is curved, rather than being straight.

8. True

Explanation: When it comes to exercise, starting slow is the main key. It is followed by gradual building up. The increase will depend on the person's stamina. For example, starting with a warm-up, followed by a slow walk then pacing up to a brisk walk.

9. True

Explanation: Kyphosis is a spinal condition wherein the person's spine is excessively curved outward. This causes the upper back and the shoulders to be rounded. This condition is commonly called "hunchback."

10. True

Explanation: Proper posture entails the right amount of spinal curve. This means that the spine is in "neutral position." This means that the spine takes on the "S-shape." A little amount of curve results to a "flat back" while too much curve results to a "swayback."

11. all of the above

Explanation: Body posture and technique are important especially when it comes to exercise. Poor posture and technique lead to strain on joints, ligaments and injury especially to the muscles. This also puts the body out of alignment.

12. True

Explanation: Stretching is appropriately done at the end of a warm-up when the temperature has increased because at this time, the muscles are already flexible. It allows the muscles to be loosened and also aids in better performance during workouts or exercises.

13. False

Explanation: "Lifting" with your back only will result to muscle injury. There are several ways to do lifting such as "pull-ups" or "lat pull downs." This means that you are not lifting with your back only but using your other joints and muscles for lifting.

14. True

Explanation: "Warming-up" is an essential preparation before any workout because it prepares the body by increasing temperature and blood flow to the muscles. Without it, the muscles will become sore and the chance for injuries increases.

15. True

Explanation: "Cool down" is considered equally important as "warm-up." It lowers the body's temperature and lowers the amount of lactic acid that causes muscle cramping, soreness and stiffness.

16. True

Explanation: It is said that most people forget about warming up and cooling down before and after they work out. It is necessary to have 5 to 10 minutes of warm-up and cool down for every exercise routine.

17. False

Explanation: Knee extension is best done at 90 degrees angle as advised by most health experts. However, it depends on your capability and your exercise goals. For some people, extending beyond 90 degrees is beneficial.

18. True

Explanation: Tucking your belly button helps with your body's core exercise. If this is going to be done throughout the day, then surely it will strengthen the muscles. This can be done while a person is sitting down or walking.

if the forces acting on an object are unbalanced, the object will accelerate in the direction of the net force on the object.

explanation:

this is best explained by having an understanding of newton's second law, which states that f=ma. you see, when the forces are unbalanced, net force (sum of all forces) is not zero. therefore making it necessary for the object to have an acceleration in the direction of the net force.

the answer is 3.1 his answer is wrong mines is right